Switch build_image to use cros_set_lsb_release directly.

build_image

 #!/bin/bash
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Script to build a bootable keyfob-based chromeos system image from within
 # a chromiumos setup. This assumes that all needed packages have been built into
 # the given target's root with binary packages turned on. This script will
 # build the Chrome OS image using only pre-built binary packages.
@@ skipping 173 matching lines @@
 bigger than partition (${FLAGS_rootfs_partition_size} MiB)."
 fi
 
 EMERGE_BOARD_CMD="emerge-${FLAGS_board}"
 if [ "${FLAGS_fast}" -eq "${FLAGS_TRUE}" ]; then
   echo "Using alternate emerge"
   EMERGE_CMD="${GCLIENT_ROOT}/chromite/bin/parallel_emerge"
   EMERGE_BOARD_CMD="${EMERGE_CMD} --board=${FLAGS_board}"
 fi
 
+OVERLAY_CHROMEOS_DIR="${SRC_ROOT}/third_party/chromiumos-overlay/chromeos/"
+
 # Determine build version.
-. ${SRC_ROOT}/third_party/chromiumos-overlay/chromeos/config/chromeos_version.sh
+. "${OVERLAY_CHROMEOS_DIR}/config/chromeos_version.sh"
 
 # Configure extra USE or packages for this type of build.
 EXTRA_PACKAGES=""
 EXTRA_USE=""
 if [ "${FLAGS_factory_install}" -eq "${FLAGS_TRUE}" ] ; then
   # Factory install needs to have the kernel initrmafs enabled,
   # and the factory installer added.
   EXTRA_PACKAGES="${EXTRA_PACKAGES} chromeos-base/chromeos-factoryinstall"
   EXTRA_USE="${EXTRA_USE} initramfs"
 fi
@@ skipping 434 matching lines @@
   sudo mkdir -p "${ROOT_FS_DIR}/dev"
 
   # We "emerge --root=${ROOT_FS_DIR} --root-deps=rdeps --usepkgonly" all of the
   # runtime packages for chrome os. This builds up a chrome os image from
   # binary packages with runtime dependencies only.  We use INSTALL_MASK to
   # trim the image size as much as possible.
   sudo USE="${EXTRA_USE}" INSTALL_MASK="${INSTALL_MASK}" ${EMERGE_BOARD_CMD} \
     --root="${ROOT_FS_DIR}" --root-deps=rdeps \
     --usepkgonly chromeos ${EXTRA_PACKAGES} ${EMERGE_JOBS}
 
-  # Perform any customizations on the root file system that are needed.
-  "${SCRIPTS_DIR}/customize_rootfs" \
+  # Set /etc/lsb-release on the image.
+  "${OVERLAY_CHROMEOS_DIR}/scripts/cros_set_lsb_release" \
     --root="${ROOT_FS_DIR}" \
-    --target="${ARCH}" \
     --board="${BOARD}"
 
   # Populates the root filesystem with legacy bootloader templates
   # appropriate for the platform.  The autoupdater and installer will
   # use those templates to update the legacy boot partition (12/ESP)
   # on update.
   # (This script does not populate vmlinuz.A and .B needed by syslinux.)
   enable_rootfs_verification=
   if [[ ${FLAGS_enable_rootfs_verification} -eq ${FLAGS_TRUE} ]]; then
     enable_rootfs_verification="--enable_rootfs_verification"
@@ skipping 155 matching lines @@
   echo "Developer image created as ${DEVELOPER_IMAGE_NAME}"
 fi
 
 print_time_elapsed
 
 echo "To copy to USB keyfob, do something like:"
 echo "  ./image_to_usb.sh --from=${OUTSIDE_OUTPUT_DIR} --to=/dev/sdX"
 echo "To convert to VMWare image, INSIDE the chroot, do something like:"
 echo "  ./image_to_vm.sh --from=${OUTSIDE_OUTPUT_DIR} --board=${BOARD}"
 echo "from the scripts directory where you entered the chroot."